We have a mapping for a "NonAntiAliasedSans" font family in fonts.conf that maps it to Arial with "antialias" set to false. The test passes fine on Lucid but appears to fail on Precise; we're getting the aliased version. I'm not sure if this is a bug in fontconfig or what; from looking at the code in SkFontHost I don't see us even having any idea about this.